Motion detector for opening doors



FIG. 1 is a bottom perspective view of a motion detector for opening doors according to my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a left end elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The dashed lines in the drawings are for environmental purposes and form no part of the claimed design. 

The ornamental design for a motion detector for opening doors, as shown and described. 